300kHz Signal Generator Circuit

Published:2011/6/4 9:39:00 Author:Joyce | Keyword: 300kHz , Signal Generator | From:SeekIC

As shown in the figure is a 300 kHz signal generator. The voltage-controlled oscillator consists of VT1,T1, VD4 and other relevant components, with LC collector tuning.VT1 is the oscillating tube, while variode VD4, capacitance C3 ~ C6 and inductance of transformer T1`s windings 1 ~ 3 compose a tuned circuit. The variode VD4 works as control voltage is sent to its negative terminal to change its electric capacity. Oscillating signal is output by windings 6 ~ 7 of T1. Among them, C6 is a frequency trim capacitance. VD3 is to stabilize the working voltage of oscillator stage, and the stabilized voltage is 6.8 V ± 0.2 V.



Reprinted Url Of This Article:
http://www.seekic.com/circuit_diagram/Signal_Processing/300kHz_Signal_Generator_Circuit.html

Print this Page | Comments | Reading(3)